Grove Gear Products Catalog 8050

ELECTRA-GEAR

Single Reduction Worm Gear Reducers

EL Series Dimensions Styles: BMQ, BM, B

STYLE BMQ, BM, B DIMENSIONS (Inches)

U +0.000 -0.0015

T +0.000 -0.0015

H

Input Key (Style B Only)

Input Key (Style BM only)

Worm - Worm Gear Reducers

Size

A B B1 C CD D DX F

G

I

J

K L

M N O O*

Output Key

Tap Size Depth EL813 2.82 3.80 -- 4.66 1.33 1.72 -- 2.00 1.00 5/16-18 0.50 2.40 3.25 1.63 3.82 1.87 4.00 2.16 1.96 0.625 0.500 1/8 x 1.00 1/8 x 1.00 3/16 x 1.38 EL818 3.50 4.83 2.48 5.86 1.75 2.31 -- 2.94 1.47 5/16-18 0.63 3.03 3.69 1.84 4.45 1.78 4.39 2.05 1.85 0.750 0.625 3/16 x1.38 3/16 x .500 3/16 x 1.38 EL821 3.91 5.75 2.76 6.88 2.06 2.63 -- 3.25 1.63 3/8-16 0.87 3.40 4.13 2.06 4.82 1.76 4.68 2.29 2.09 1.000 0.625 3/16 x1.38 3/16 x .500 1/4 x 1.44 EL824 4.06 5.86 -- 6.94 2.38 2.50 -- 2.88 1.44 3/8-16 0.69 3.61 5.00 2.50 5.51 2.45 5.14 2.66 2.46 1.125 0.750 3/16 x1.63 3/16 x .500 1/4 x 1.62 EL826 4.84 7.17 4.21 8.00 2.63 3.25 -- 3.38 1.69 3/8-16 0.69 4.17 5.00 2.50 6.07 2.45 5.63 2.73 2.53 1.250 0.750 3/16 x1.63 3/16 x .500 1/4 x 1.62 EL830 5.25 8.11 4.50 8.94 3.00 3.50 -- 4.13 2.06 1/2-13 1.00 4.81 5.75 2.88 6.56 2.31 6.62 3.60 3.37 1.500 0.875 3/16 x1.63 3/16 x .500 3/8 x 2.25 EL832 5.25 8.11 4.53 10.50 3.25 4.00 -- 4.13 2.06 1/2-13 1.00 5.00 6.63 3.31 6.75 2.31 6.62 3.60 3.37 1.625 0.875 3/16 x1.63 3/16 x .500 3/8 x 2.25 EL842 6.13 9.63 5.71 11.69 4.25 4.50 -- 3.75 1.88 5/8-11 1.19 6.15 7.00 3.50 9.57 3.47 8.12 4.50 4.22 1.750 1.250 1/4 x 2.50 1/4 x 2.50 3/8 x 3.00 EL852 7.19 11.50 7.82 12.25 5.25 4.25 0.75 5.25 2.63 3/4-10 1.44 7.55 9.62 4.81 10.88 3.38 9.06 4.78 4.50 2.000 1.250 1/4 x 3.00 1/4 x 3.00 1/2 x 2.50 EL860 7.00 13.50 -- 14.25 6.00 5.00 1.63 5.38 2.69 7/8-9 1.63 7.88 11.00 5.50 10.99 3.00 10.75 5.25 5.25 2.250 1.500 3/8 x 3.00 3/8 x 2.75 1/2 x 4.00

Double Reduction

Helical - Worm Gear Reducers

Motor Mounting Dimensions NEMA DIMENSIONS (Inches) LM LM1 L1 LQ

Double Reduction

NEMA DIMENSIONS (Inches)

LQ1 RQ Size 56C/140TC 180TC / 210TC 56C/140TC 180TC / 210TC 56C/140TC 180TC / 210TC 56C/140TC 180TC / 210TC EL813 6.07 -- 3.82 -- 3.79 -- 3.09 -- EL818 5.89 -- 3.64 -- 4.42 -- 3.59 -- EL821 6.26 -- 4.00 -- 4.79 -- 4.06 -- EL824 6.48 7.30 4.29 4.29 4.77 4.77 4.09 4.09 EL826 7.04 7.86 4.88 4.88 5.33 5.33 4.82 4.82 EL830 7.67 8.31 5.38 5.38 5.97 5.97 5.32 5.32 EL832 7.86 8.50 5.56 5.56 6.16 6.16 5.51 5.51 EL842 11.25 12.53 9.57 9.57 6.45 6.45 6.04 6.04 EL852 12.65 13.93 10.88 10.88 7.85 7.85 7.35 7.35 EL860 -- 11.94 10.99 10.99 -- -- -- -- * Applies to double output shaft u Keyway width by depth i Solid input shaft and C-faced coupling input reducers have different input shaft length and key.

Frame AJ AK BD BE BE1 Bore Keyway u

BF

Dia.

56C 5.88 4.50 6.50 0.38 N/A .625 3/16 X 3/32 0.41 140TC 5.88 4.50 6.50 0.38 N/A .875 3/16 X 3/32 0.41 180TC 7.25 8.50 9.00 N/A 0.50 1.125 1/4 X 1/8 0.53 210TC 7.25 8.50 9.00 N/A 0.50 1.375 5/16 X 5/32 0.53

WASHGUARD ® Reducers and GEAR+MOTOR™ Ratio Multipliers

For safety, purchaser or user should provide protective guards over shaft extensions and any couplings, sheaves and belts, sprockets and chains, etc., mounted thereon.

WARNING

INTEGRAL GEARMOTOR INPUTS AVAILABLE — Contact Factory for price and availability. EL SERIES MOUNTING DIMENSIONS — EL Series mounting dimensions are the same as the original ELECTRA-GEAR product with an option to match the industry standard dimensions of GR Series. — See page 52 for GR Series dimensions.

ELECTRA-GEAR INTERCHANGE GUIDE

Original Style

New Style

Additional Capabilities

MSC or MLSC

BMQ

Accessories and

MC or MLC

BM

M or ML

B

M + “KV” Kit

B + “KV” Kit

Convert Style B to motorized coupling input using kits shown on page 278.

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